APA (7th ed.) Citation

Clark, A. H. (1946). Echinoderms from the Pearl Islands, bay of Panamá, with a revision of the Pacific species of the genus Encope (with four plates). Smithsonian Institution.

Chicago Style (17th ed.) Citation

Clark, Austin Hobart. Echinoderms from the Pearl Islands, Bay of Panamá, with a Revision of the Pacific Species of the Genus Encope (with Four Plates). Washington: Smithsonian Institution, 1946.

MLA (9th ed.) Citation

Clark, Austin Hobart. Echinoderms from the Pearl Islands, Bay of Panamá, with a Revision of the Pacific Species of the Genus Encope (with Four Plates). Smithsonian Institution, 1946.